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Splash Screen

Splash Screen. Chapter 9. Lesson 9-2. (over Lesson 7-3). A B C D. Find the area of the figure shown. Round to the nearest tenth if necessary. A. 25 mi 2 B. 36 mi 2 C. 67 mi 2 D. 74 mi 2. (over Lesson 7-5). A B C D.

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Splash Screen

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  1. Splash Screen Chapter 9 Lesson 9-2

  2. (over Lesson 7-3) • A • B • C • D Find the area of the figure shown. Round to the nearest tenth if necessary. A.25 mi2 B.36 mi2 C.67 mi2 D.74 mi2

  3. (over Lesson 7-5) • A • B • C • D Find the volume of the given solid. Round to the nearest tenth if necessary. A.25.5 cm3 B.51 cm3 C.76.5 cm3 D.153 cm3

  4. A. B. C. D. (over Chapter 8) • A • B • C • D Solve 4m + 5 = 25. Then check your solution.

  5. A. AnsA B. AnsB C. D. (over Lesson 9-1) • A • B • C • D Find f(5) if f(x) = 4x.

  6. Represent linear functions using function tables and graphs. • linear function

  7. Standard 7AF1.5 Represent quantitative relationships graphically and interpret the meaning of a specific part of a graph in the situation represented by the graph.

  8. You can’t have these: 3x + y = 2 y + 4 = 2x 2x – 9 + y = 2 Y must always be on the left side & the function rule must always be on the right side. So What’s the Rule? But You can have these: y = 2 – 3x y = -2x + 11 y = 2x - 4

  9. Graph a Function MUSICDuring a clearance sale, a music store is selling CDs for $3 and tapes for $1. Graph the function 3x + y = 6 to find how many CDs and tapes Bill can buy with $6. First, rewrite the equation by solving for y. 3x + y = 6 Write the equation. 3x – 3x + y = 6 – 3x Subtract 3x from each side. y = 6 – 3x Simplify into a function.

  10. Graph a Function Use the function for y (y = 6 – 3x) & set up a function table. Answer: Choose values for x and substitute them to find y. Lastly, graph the ordered pairs.

  11. Graph a Function Graph y = x – 3 Step 1 Choose some values for x. Make a function table. Include a column of ordered pairs of the form (x, y).

  12. Graph a Function Step 2 - Graph each ordered pair. - Draw a line that passes through each point. (Note that the ordered pair for any point on this line is a solution of y = x – 3.The line is the complete graph of the function.)

  13. ? –4 = –1 – 3 Replace x with –1 and y with –4. –4 = –4 Simplify.  Graph a Function CheckIt appears from the graph that (–1, –4) is also a solution. Check this by substitution. y = x – 3. Write the function.

  14. B. • C. D. Which line graphed below best represents the table of values for the ordered pairs (x, y)?

  15. BAKE SALEDuring a bake sale, a plate of brownies is sold for $2 and a plate of cookies is sold for $1. Graph the function 2x + y = 4 to find how many plates of brownies and cookies Craig can buy with $4. X Y 2x + y = 4 ( X, Y ) Start by making a function table:

  16. Graph y = x –2 Answer:

  17. A. B. C. D. Which line graphed below best represents the table of values for the ordered pairs (x, y)? • A • C • D

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